Alcor Micro AU9525 Technical Reference Manual - Page 10

Browse online or download pdf Technical Reference Manual for Card Reader Alcor Micro AU9525. Alcor Micro AU9525 15 pages. Usb smart card reader controller

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Pin #
Pin Name
1
AVCC
2
AVSS
3
XTAL1
4
XTAL2
5
PSWOUTB
6
PSWOUTA
7
VCC5V
8
BVCC
9
USB_DP
10
USB_DM
11
BVSS
12
ChipRstN
13
LCD_En
14
GPI_0
15
LCD_Rw
16
GPI_1
17
LCD_RS
18
SCL
19
SDA
20
LCD_BL
21
LCD_CS1
22
Key_Row4
23
Key_Row3
24
Key_Row2
25
Key_Row1
26
Key_Row0
27
PORT1_2
28
PORT1_3
29
PORT1_4
30
PORT1_5
31
PORT1_6
32
PORT1_7
33
Key_Col5
4

Table 3.1 AU9525 Pin Descriptions

I/O
PWR
Analog 3.3V power supply
PWR
Analog ground.
I
Crystal Oscillator Input (12MHz).
O
Crystal Oscillator Output (12MHz).
O
Connect to Slot1 Power.
O
Connect to Slot0 Power.
PWR
5V power supply Input
PWR
3.3V power supply output
I/O
USB D+
I/O
USB D-
PWR
Chip I/O Ground.
I
Chip Reset
O
LCD Enable（High effective).
I
Reserved (need pull down)
O
LCD Read/Write.0:write;1:read.
I
Reserved (need pull down)
O
LCD driver dedicated I/O line: LCD Register Select.
I/O
EEPROM Clock (need pull high)
I/O
EEPROM Data (need pull high)
O
LCD Background Light control,1:on,0:off.
LCD Display control(To select the left side or right
O
side).
I
Keyboard row input 4.
I
Keyboard row input 3.
I
Keyboard row input 2.
I
Keyboard row input 1.
I
Keyboard row input 0.
O
Slot1 LED
O
Slot2 LED
O
Card Power LED
PID/VID ("1": 9525 one slot mode, "0": 9526 two slot
I
mode, default: "1")
I
Reserved(need pull Low)
I
Reserved(need pull Low)
I
Keyboard columniation input 5.
AU9525 USB Smart Card Reader Controller V1.00W
Description